Improvement in steam pumping-engines



UNITED STATES `PATRICK DOYLE, OF NEVI OOMERSTOVN, OHIO.

IMPROVEMENT IN STEAM PUMPING-ENGINES.

Speciiieation forming part of Letters Patent No. 116,. 72, dated July 4,1871.

To all whom Iit may colmena:

Be it known that I, lA'rRiCK DOYLE, o' Neve Oomerstown, in the countyot' lusearawas and State of Ohio, have invented a new and usefulImprovement .in Steam VPumping-flngincs5 and I do hereby declare thatthe following` is a full, clear, and exaet deseription tln'ereof, whiehwill enable others skilled in the art to make and use the same,reference bein had to the aceompan yin drawin forming' part of thisspeeitieation.

rIhis invention relates to a new and useful improvement in steam-pumps;and consists in the mode oi connecting' the valves and valve-seats withthe pump, and in. the arrangement and combination ot' parts, ashereinafter more fully described.

In the accompanying' drawing, Figure lV represents a verticallongitiulinal seetionot the Awhole apparatus,taken on the line .r .1;of' Fig. 2. Fig. 2 is a top or plan view.

Similar letters ot' reference indicate correspon din parts.

A is the pump-eylinder. der. O is the steam-ehest. l) is thesteam-valve. E is the valve-rod. Fis the steanrpiston. is thepump-piston. II is a common piston-rod, to the end ot' wliieh thepistons F and G- are attached, as represented in the drawing. 1 is anarm on the piston-rod. J .I are adjustable tappets on the valve-rod. Thesteam-valve l) is operated by means of' the arm striking the tappet ateach stroke ot' the engine. K represents the valves, and L thevalve-seat plates ot.' the pump, arranged 3 is th'e steam-cylintooperate in the Water-cliambers M N, as seen in Fig'. l. rIhe valveseatofthe pump is on the an guiar plate I1, with the valve Working upon itshorizontal 1 ortion,to which portion th c valvefcage Ois attached. Theangular pla-te is fastened in the position seen in the drawin bythescre\\heads or buttons lt. NVhen the buttons are turned so as to releasethe upright portion oi' the plate the entire plate, with the valve, .maybe drawn out for repairs or other purposes. The valveseat plates fornipartitions in the water-ehambers, so that the water is tbreed (when thepiston moves) as indicated bythe arrows. By this arrangement of thevalves and seats it will be seen that any one oi" the valves and seatsmay be removed for grindingI or cleaning, or partly removed for lettinolif the water in ireezing weather, or for other purposes. Thehorizontal portion of the valveplate projects as seen at S, with anoriiieeforihe hand in the )1'o iecting portion for facilitating theremoval ot' the plate and valves. v

Havingi thus described my invention,` I elaim as new and desire tosecure by Letters Patent- The angular valve-plate L, forming thevalveseat and supporting the valve,and made removable, in combinationwith a pumping-eiigine, substantially as and for the purposes described.

Vitnesses:

M onlus Omnium, CLARA Cunrnn, J. ltnnon'r.

